Vise.



Patented Aug. 12, 1913.

vlsn.

P. MAGHAVA.

APPLICATION FILED APR.6, 191.2.

ATTORNEYS vvnTNEssEs FRANK MACHAVA, OF'GREENSBURG, PENNSYLVANIA. v

VISIE.

Specification of Letters Patent.

Fatented Aug. 12,1913.

Application iled April 6, 1912. Serial No. 689,052.

To all. whom t may concern.'

Be it knownv that l, FRANK MACHAVA, a citizen of the United States of America, residing at Greensburg, in the county of Westmoreland and State of Pennsylvania, have invented certain new and useful Improvements in Vises, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to vises, and the primary object of my invention is to provide a vise that can be easily and quickly adjust-ed for positively holding pipes and other structures whereby they can be operated upon.

A further object of this invention is to provide a strong and durable vise with various kinds of gripping jaws whereby a pipe can be positioned and conveniently operated upon.

I attain the above objects by a mechanical construction that will be hereinafter specifically described and then claimed, and vreference will now be had tothe drawing, wherein like numerals denote corresponding parts throughout the several views, in which:-

Figure 1 is a front elevation'of the vise partly broken away and partly in section, Fig. 2 is a side elevation of the same partly broken away and partly in section, Fig. 3 is a horizontal view of thevise taken on the line III-Hof Fig. 1, Fig. f1 is a similar`- view taken on the line IV-IV ofFig. 1, Figs. 5 and 6 are perspective views of detached jaws, Fig. 7 is a Iperspective, view of a detached modified-form of jaw, and .F ig. 8 isa similar view of a jaw attachment.

A vise inaccordance with this invention comprises a base block 1 having an integral base plate 2 adapted to be secured to a suitable support 3 by fastening means, such vas screws .(not shown) passing through openings 4 provided therefor in the base plate 2. The rear side of the base block 1 is pro-y vided with uprights 5 having the lower ends thereof connected by a transverse bar 6 and the upper ends thereof by a cross head 7. Secured to the cross head 7 by screws'8 or other fastening means is a forwardly extending bracket 9 and adjustably mounted in said bracket is a vertical screw 10 having the upper end thereof provided with a hand wheel 11. The lower end of the screw 10 has a head 12 retained in engagement with a jaw'body 13 by a plate 14 that is attachedto thie jaw body 13 by screws 15 or other fastening means. The lower edge ,of the jaw body 1,3 has a vertical rectangular frame 16 and Said frame has a vertical guide 17 that slides through an opening 18 provided therefor in the bracket 9. rEhe frame 16 has vertical rails 19, at the rear side thereof, engag- -ing the rear side of the uprights 5. -The frame 16, adjacent to the jaw body 13, has guides 20 engaging the front side of the uprights, the rails 119 coperating with the guides 20 in movably holding the jaw body 13 uponthe uprights 5.

The underneath side of the jaw body 13 has a longitudinal socket 21 confronting a similar socket 22 in the base block 1 and arranged in said sockets andretained therein by set screws 23 are the tongues 24 of jaws 25. Each jaw has a concave serrated or toothed seat 26 for gripping the surface of a pipe. When it is desired to grip a very small pipe or rod, a conveXo-concave attachvment 27 is placed in engagement with the jaw 25 of the jaw body 13, said attachment having a tongue to fit in a recess 2S provided therefor in the jaw 25.

As illustrated in Figs. 5 and 6, I can resort to the use of jaws 29 and 30, the jaw 29 beingbifurcated, as at 31 to receive the jaw 30, whereby pipes orvrods of various sizes can be held between the jaws. In this instance, the gripping surfaces of the jaws 29 and 30 longitudinally aline with an opening 32 between the uprights 5, while in Fig. 2 the gripping surfaces are arranged longitudinally of the -base block 1. By using the -j aws illustratedin Fig. 2, a pipe is'held longitudinally of the base block 1 and by using the jaws 29 and 30 a pipe is held at right angles or transversely of the base block 1, the pipe in some instances extending through the opening 32. The jaws 29 and 30 have concave grlpping surfaces, while the modified form of jaw illustrated in Fig. 7 has a V-shaped gripping surface.

1t is thought that the operation and utility of the vise will be apparent without further description, and while in the drawing there is illustrated a preferred embodiment of the invention, it is to be understood that the.

structural elements thereof are susceptible to such changes as fall within the scope of the appended claim.

What 1 claim isz- A vise comprising a base block, a jaw detachably connected thereto, uprights carried by the rear edge ofsaid base block, a cross head connecting said uprights, a bracket carand engaging the front side of said uprights, 10 ried by said cross head, a, screw adjustabiy and a central guide carried by said frame mounted in said bracket, a jaw body supand movable through said cross head.

ported by said screw, a jaw detaehably conn testimony whereof I ax my. signature neeted to said jaw body and confronting the in the presence ofv two witnesses.

j aw of said base block, a rectangular frame FRANK MACHAVA. carried'by said jaw body, rails carried by Witnesses:

said frame and engaging the rear sides 'of MAX H. Sn'oLovITz,

said uprights, guides carried by said frame WANDA M. KULEsYzA. y 

